Deactivatable security label for anti-theft systems

Details Deactivatable security label for anti-theft systems Deactivatable security label for anti-theft systems

1986-11-24

1988-05-10

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340572, G08B 1324

Patent

active

047438908

ABSTRACT:
A deactivatable security label comprising a low-coercivity strip and a strip having a high coercive field strength can be advantageously manufactured when the alloy of cobalt, nickle and/or iron is employed which exhibits a coercive field strength of between 20 and 50 A/cm given a remanence of more than one Tesla and when this strip is secured to a low-coercivity strip of amorphous material by means of spot welding.

REFERENCES:
patent: 3747086 (1973-07-01), Peterson
patent: 3781661 (1973-12-01), Trikilis
patent: 3820104 (1974-06-01), Fearon
patent: 4158434 (1979-06-01), Peterson
patent: 4260881 (1981-04-01), Peterson
patent: 4539558 (1985-09-01), Fearon
patent: 4686154 (1987-08-01), Mejia

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